2b thread class right-hand 1.140" overall length 16 thread quantity per inch nickel surface treated straight shape, solid internal threaded coupling un thread series
2a thread class right-hand 1.250" overall length any acceptable overall width 28 thread quantity per inch cadmium surface treated straight type w/cable clamp un thread series
Used on forrestal class cv; nimitz class cvn. 0.638" overall length 0.512" overall width 32 thread quantity per inch weapon system essential uns thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 3.629" overall length tap, circular, bushing mount unef single mounting facility thread series